Effects of Hydrostatic Pocket Shape on the Flow Pattern and Pressure Distribution
The flow in a hydrostatic pocket is numerically simulated using a dimensionless formulation of the 2-D Navier-Stokes equations written in primitive variables, for a body fitted coordinates system, and applied through a collocated grid. In essence, we continue the work of Braun et al. 1993a, 1993b] a...
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Wiley
1995-01-01
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| Series: | International Journal of Rotating Machinery |
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| Online Access: | http://dx.doi.org/10.1155/S1023621X95000091 |
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| author | M. J. Braun M. Dzodzo |
| author_facet | M. J. Braun M. Dzodzo |
| author_sort | M. J. Braun |
| collection | DOAJ |
| description | The flow in a hydrostatic pocket is numerically simulated using a dimensionless formulation of the 2-D Navier-Stokes
equations written in primitive variables, for a body fitted coordinates system, and applied through a collocated grid. In
essence, we continue the work of Braun et al. 1993a, 1993b] and extend it to the study of the effects of the pocket geometric
format on the flow pattern and pressure distribution. The model includes the coupling between the pocket flow and a finite
length feedline flow, on one hand, and the pocket and its adjacent lands on the other hand. In this context we shall present,
on a comparative basis, the flow and the pressure patterns at the runner surface for square, ramped-Rayleigh step, and arc
of circle pockets. Geometrically all pockets have the same footprint, same lands length, and same capillary feedline. The
numerical simulation uses the Reynolds number based on the lid(runner) velocity and the inlet jet strength F as the dynamic similarity parameters. The study aims at establishing criteria for the optimization of the pocket geometry
in the larger context of the performance of a hydrostatic bearing. |
| format | Article |
| id | doaj-art-b3333cb41fdd47de9047e7217937cf39 |
| institution | Kabale University |
| issn | 1023-621X |
| language | English |
| publishDate | 1995-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-b3333cb41fdd47de9047e7217937cf392025-02-03T01:03:22ZengWileyInternational Journal of Rotating Machinery1023-621X1995-01-0113-422523510.1155/S1023621X95000091Effects of Hydrostatic Pocket Shape on the Flow Pattern and Pressure DistributionM. J. Braun0M. Dzodzo1Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USADepartment of Mechanical Engineering, University of Akron, Akron, OH 44325, USAThe flow in a hydrostatic pocket is numerically simulated using a dimensionless formulation of the 2-D Navier-Stokes equations written in primitive variables, for a body fitted coordinates system, and applied through a collocated grid. In essence, we continue the work of Braun et al. 1993a, 1993b] and extend it to the study of the effects of the pocket geometric format on the flow pattern and pressure distribution. The model includes the coupling between the pocket flow and a finite length feedline flow, on one hand, and the pocket and its adjacent lands on the other hand. In this context we shall present, on a comparative basis, the flow and the pressure patterns at the runner surface for square, ramped-Rayleigh step, and arc of circle pockets. Geometrically all pockets have the same footprint, same lands length, and same capillary feedline. The numerical simulation uses the Reynolds number based on the lid(runner) velocity and the inlet jet strength F as the dynamic similarity parameters. The study aims at establishing criteria for the optimization of the pocket geometry in the larger context of the performance of a hydrostatic bearing.http://dx.doi.org/10.1155/S1023621X95000091Hydrostatic pocketNumericalFlow patternPressureNavier-Stokes. |
| spellingShingle | M. J. Braun M. Dzodzo Effects of Hydrostatic Pocket Shape on the Flow Pattern and Pressure Distribution International Journal of Rotating Machinery Hydrostatic pocket Numerical Flow pattern Pressure Navier-Stokes. |
| title | Effects of Hydrostatic Pocket Shape on the Flow
Pattern and Pressure Distribution |
| title_full | Effects of Hydrostatic Pocket Shape on the Flow
Pattern and Pressure Distribution |
| title_fullStr | Effects of Hydrostatic Pocket Shape on the Flow
Pattern and Pressure Distribution |
| title_full_unstemmed | Effects of Hydrostatic Pocket Shape on the Flow
Pattern and Pressure Distribution |
| title_short | Effects of Hydrostatic Pocket Shape on the Flow
Pattern and Pressure Distribution |
| title_sort | effects of hydrostatic pocket shape on the flow pattern and pressure distribution |
| topic | Hydrostatic pocket Numerical Flow pattern Pressure Navier-Stokes. |
| url | http://dx.doi.org/10.1155/S1023621X95000091 |
| work_keys_str_mv | AT mjbraun effectsofhydrostaticpocketshapeontheflowpatternandpressuredistribution AT mdzodzo effectsofhydrostaticpocketshapeontheflowpatternandpressuredistribution |